<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <!-- 引入axios文件 -->
    <script src="./node_modules/axios/dist/axios.min.js"></script>
    <style>
      body {
        margin: 0;
        padding: 30px;
      }

      a {
        text-decoration: none;
      }

      table,
      td,
      th {
        border: 1px solid black;
        /* 边框合并 */
        border-spacing: 0;
        border-collapse: collapse;

        text-align: center;
      }

      th,
      td {
        padding: 5px 10px;
      }
    </style>
  </head>
  <body>
    <h1>用户列表</h1>
    <a href="./add.html">添加用户</a>
    <br /><br />
    <table>
      <thead>
        <tr>
          <th>id</th>
          <th>用户名</th>
          <th>密码</th>
          <th>操作</th>
        </tr>
      </thead>
      <!-- 假数据 -->
      <tbody>
        <!-- <tr>
          <td>1</td>
          <td>张三</td>
          <td>123</td>
          <td>
            <a href="">编辑</a>
            <a href="">删除</a>
          </td>
        </tr>
        <tr>
          <td>2</td>
          <td>李四</td>
          <td>124</td>
          <td>
            <a href="">编辑</a>
            <a href="">删除</a>
          </td>
        </tr> -->
      </tbody>
    </table>

    <script>
      //获取table对象
      var tbody = document.querySelector("tbody");

      //通过axios发送异步请求,获取数据
      axios.get("http://localhost:3000/users").then((res) => {
        //获取所有用户的数组
        var arr = res.data;
        console.log(arr);

        //将用户数组中的js对象转成tr的dom字符串,拼接成一个完整字符串,赋给table对象
        tbody.innerHTML = arr
          .map((item) => {
            return `<tr>
                            <td>${item.id}</td>
                            <td>${item.username}</td>
                            <td>${item.password}</td>
                            <td>
                                <a href="./edit.html?id=${item.id}">编辑</a>
                                <a href="" onclick='deleteItem(${item.id})'>删除</a>
                            </td>
                        </tr>`;
          })
          .join("");
      });

      //实现删除的方法
      function deleteItem(id){
        var res = confirm('你确定要删除吗')
        if(res){
            axios.delete(`http://localhost:3000/users/${id}`).then(res=>{
                location.href = './index.html'
            })
        }
      }
    </script>
  </body>
</html>
